<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区域 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区域 -->
            <el-form ref="loginFormRef" :rules="loginFormRules" :model="loginForm" label-width="0px" class="login_form">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input  v-model="loginForm.username" prefix-icon="el-icon-user"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item  prop="password">
                    <el-input  v-model="loginForm.password" prefix-icon="iconfont icon-mima" type="password"></el-input>
                </el-form-item>
                <!-- 按钮 -->
                <el-form-item class="btns">
                   <el-button type="primary" @click="login">登录</el-button>
                   <el-button type="info" @click="resetLoginFrom">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default{
    data(){
        return{
            loginForm:{
                username:'admin',
                password:'123456'
            },
            //表单验证规则
            loginFormRules:{
                username:[
                     { required: true, message: '请输入登录名称', trigger: 'blur' },
                     { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                     { required: true, message: '请输入登录密码', trigger: 'blur' },
                     { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ]
            }
        };
    },
    methods:{
        //重置按钮，重置登录表单
        resetLoginFrom(){
            this.$refs.loginFormRef.resetFields();
        },
        login(){
            this.$refs.loginFormRef.validate(async vaild=>{
                if(!vaild) return;
                const {data:res} =await this.$http.post("login",this.loginForm);      
                if(res.meta.status !==200) return this.$message.error('登录失败');
                this.$message.success('登录成功');
                window.sessionStorage.setItem('token',res.data.token);
                this.$router.push("/home");
            });
        }
    }
}
</script>

<style scoped >
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top:50%;
    transform: translate(-50%,-50%);
}
.avatar_box{
    height: 130px;
    width: 130px;
    border:1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
}

.avatar_box img{
    width: 100%;
    height:100%;
    border-radius: 50%;
    background-color: #eee;
}

.btns{
    display: flex;
    justify-content: flex-end;
}

.login_form{
    position:absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
</style>